"I could arguably say what we're planning for the year 2021," Marvel Studios President Kevin Feige said in an interview with WIRED. "Will that happen? I don't know. But what we planned for 2015 in 2006 is happening."

Three release dates have already been announced for unspecified movies -- two in 2016 and one in 2017 -- and now we can expect even more in the upcoming years. Characters such as Doctor Strange and Black Panther are rumored to have movies in development, but with 50-plus years of comics to fall back on, Marvel could go any direction.

"Five years ago, looking at our plan, we knew that if Avengers was going to work, the movies had to stand alone," Feige said. "Now we have to prove to the studio that we're more than just these five characters, these five franchises."

With 2014’s Guardians of the Galaxy and 2015’s Avengers: Age of Ultron, Marvel Studios will have completed Phase 2 of the Marvel Cinematic Universe. They are immediately launching Phase 3 with the long-gestating Ant-Man movie the same year as the Avengers sequel, so if they continue their current pacing, they’ll be in Phase 4 by 2021. What will the MCU look like then?

Guardians of the Galaxy and Ant-Man hitting the big screen shows that Marvel Studios is not afraid to take some chances with lesser known properties.

Aside from sequels for already established franchises like Iron Man and Captain America, what other characters and teams would you like to see join the Marvel Cinematic Universe? Luke Cage, the Inhumans, or Carol Danvers as Captain Marvel, anyone?

Joshua writes for IGN. If Pokemon, Game of Thrones, or Green Lantern are frequently used words in your vocabulary, then you’ll want to follow him on Twitter and IGN.